/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.    
 */

using System;
using System.IO;
using Velocity4Net.Ctx;
namespace Velocity4Net.Runtime.Parse.AST
{
    /**
     * This class is responsible for handling Escapes
     *  in VTL.
     *
     * Please look at the Parser.jjt file which is
     * what controls the generation of this class.
     *
     * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
     * @version $Id: AST Escape.java 731266 2009-01-04 15:11:20Z byron $
     */
    public class ASTEscape : SimpleNode
    {
        /** Used by the parser */
        public String val;
        private char[] ctext;
        public ASTEscape(int id) : base(id) { }

        public ASTEscape(Parser p, int id) : base(p, id) { }

        /**
         * @see org.apache.velocity.runtime.parser.node.SimpleNode#init(org.apache.velocity.context.InternalContextAdapter, java.lang.Object)
         */
        public override Object Init(InternalContextAdapter context, Object data)
        {
            ctext = val.ToCharArray();
            return data;
        }

        /**
         * @see org.apache.velocity.runtime.parser.node.SimpleNode#render(org.apache.velocity.context.InternalContextAdapter, java.io.Writer)
         */
        public override bool Render(InternalContextAdapter context, TextWriter writer)
        {
            writer.Write(ctext);
            return true;
        }
    }

}
